Question

想象下面HTML文件的一部分：

<div class='span1 league'>
    <div class='league-gold-1 leagues size-64'></div>
</div>
<div class='span4 stats'>
    <div class='points'>
        <span class="gold">491</span>
        points
        (<span class="gold">391</span> away for region #1)
    </div>
    <div class='games'>
        Won <span class="text-success">37</span>,
        lost <span class="text-error">51</span>,
        ratio <span>42.05</span>%
    </div>
    <div class='race'>
        Favorite Race:
        <div class='race-terran races size-16'></div>
        <span>Terran</span>
    </div>
</div>

在这种情况下，我需要获得37和51的赢和输的游戏数量。也是要点（在这种情况下是491）。我一直在尝试使用html敏捷包但到目前为止还没有成功。如果你现在解决这个问题，请告诉我！

Answer 1

使用HtmlAgilityPack

var doc = new HtmlAgilityPack.HtmlDocument();
doc.Load(fname);
var won  = doc.DocumentNode.SelectSingleNode("//div[@class='games']/*[@class='text-success']").InnerText;
var lost = doc.DocumentNode.SelectSingleNode("//div[@class='games']/*[@class='text-error']").InnerText;
var points = doc.DocumentNode.SelectSingleNode("//div[@class='points']/*[@class='gold']").InnerText;

您也可以使用Linq而不是XPath

var won = doc.DocumentNode.Descendants("span")
          .First(s=>s.Attributes.Any(a=>a.Value=="text-success"))
          .InnerText;

Answer 2

作为一种解决方法，您可以尝试使用正则表达式

 Match m = Regex.Match(htmlstring, "<span class=\"text-success\">([0-9]+?)</span>.*?<span class=\"text-error\">([0-9]+?)</span>", RegexOptions.Singleline);
 string won = m.Result("$1");
 string loss = m.Result("$2");

使用C＃在HTML文件中搜索，其中存在许多类似的标签

2 个答案: